The concept of “policing by consent” has been a cornerstone of law enforcement in the United Kingdom for almost 200 years. The willing cooperation of the public toward being policed, and the need for the police to earn the public’s trust and cooperation, influences the U.K. approach as much today as it did in 1829, when the first organized police force came into being in London and each of its officers was presented with a copy of Robert Peel’s “Nine Principles of Policing.”

But whilst the philosophy shaping how any country protects its citizens may remain constant over time, law enforcement is ever changing—and rightly so. Crime threats keep evolving, and law enforcement’s tactics and strategies must do the same.